EP1098744B1 - Method for producing a padded object - Google Patents

Method for producing a padded object Download PDF

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Publication number
EP1098744B1
EP1098744B1 EP99947224A EP99947224A EP1098744B1 EP 1098744 B1 EP1098744 B1 EP 1098744B1 EP 99947224 A EP99947224 A EP 99947224A EP 99947224 A EP99947224 A EP 99947224A EP 1098744 B1 EP1098744 B1 EP 1098744B1
Authority
EP
European Patent Office
Prior art keywords
core part
padding
surround
gap
coating material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99947224A
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German (de)
French (fr)
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EP1098744A1 (en
Inventor
Markus Krause
Helmut Storch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grammer AG
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Grammer AG
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Publication date
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Publication of EP1098744A1 publication Critical patent/EP1098744A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/84—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks by moulding material on preformed parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/12—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
    • B29C33/123—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels for centering the inserts
    • B29C33/126—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels for centering the inserts using centering means forming part of the insert
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C39/021—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles by casting in several steps
    • B29C39/025—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles by casting in several steps for making multilayered articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C39/12—Making multilayered or multicoloured articles
    • B29C39/123—Making multilayered articles
    • B29C39/126—Making multilayered articles by casting between two preformed layers, e.g. deformable layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1223—Joining preformed parts which have previously been filled with foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings

Definitions

  • padded items Process There are several ways to make padded items Process known. For example, for realization a padded object in DE 43 00 375 A1 Process described in which in a first Process step into a deep-drawing mold closely and closely is introduced without wrinkles. Then in one second step of the reference with a Foamed reaction mixture. This reaction mixture forms a cushion core after the reaction. In one third process step can then on the of the reference averted back of the cushion core a dimensionally stable Bodies are provided. That can be done by pouring one Hard coating materials happen. To do this A molding tool with two different methods can be used Lids are used.
  • the invention has for its object a method for Creating a padded item, which is comparatively easy to implement, i.e. With which padded items simple and inexpensive are producible.
  • the cushion cover is in a mold For example, manufactured by casting.
  • the core part of it independent, i.e. For example, in a separate mold manufactured.
  • the cavity of the cushion cover becomes the gap between the Core part and the cushion cover with the coating material filled. This is done by pouring the coating material in the gap between the core part and the Pad cover.
  • the coating material has solidified in the said gap space results from the solidified Coating material the desired dimensional stability of the padded object. So the core part itself needs not being particularly dimensionally stable.
  • the cushion cover is expediently made from one Reaction foam material poured. It is preferred that Upholstery cover made of a polyurethane (PU) integral foam material to pour.
  • PU polyurethane
  • the use of a PU integral foam material gives the advantage that the cushion cover a has abrasion-resistant outer skin. That is with various Applications of the padded according to the invention Object, such as with armrests, seat and Backrest cushions, headrests or other molded parts of vehicles or the like. advantageous.
  • the cushion cover can also be made of a soft foam material, for example be poured.
  • the core part can be made of any material such as. Wood, metal, plastic, recycled plastic, etc. consist, it is appropriate to the core part of one Pour reaction foam material. It is preferred that Cast core part from a PU material. That is under the Aspect of the varietal purity of the invention manufactured padded object and thus under Appropriate for recycling.
  • the PU material it can be a PU coating material, for example. This can be a soft coating material or preferably a hard coating material.
  • This hard coating material is is preferably a PU hard coating material, so that all in all, a pure, single padded object and is inexpensive to implement.
  • the process can easily be partially automated if it is for relatively small quantities are used. at Larger quantities is the method according to the invention naturally also fully automatic.
  • both the cushion cover and the core part according to the respective requirements in simple Are freely configurable, which means that the Gap between the cushion cover and the core part can be freely designed and dimensioned accordingly each desired high mechanical strength of the finished ensure padded object.
  • Figure 1 shows a section of a mold 10, the two Has molded parts 12 and 14 and a central part 16. in the assembled state is by the two molded parts 12th and 14 and the central part 16 a mold cavity 18 for one Upholstery cover set.
  • the mold cavity 18 is with the Outside of the molding tool 10 through a pouring channel 20 fluidically connected.
  • a reaction foam material preferably from a PU integral foam material is formed. That is in Figure 1 by arrow 22 indicated.
  • the PU integral foam material is used in the Mold cavity 18 poured in such a way that it said Mold cavity 18 completely fills. After the expiry of the There is a reaction of the PU integral foam material cushion shell 24 corresponding to the mold cavity 18.
  • Figure 2 shows a sectional view of a mold 28 for a core part.
  • the molding tool 28 has two Moldings 30 and 32.
  • the two molded parts 30 and 32 are formed with recesses 34 and with transverse webs 36. Through the two molded parts 30 and 32 of the molding tool 28 extends in the illustrated embodiment a bearing axis 38 across.
  • a mold cavity 40 In the closed state of the mold 28 is by its mold parts 30 and 32 define a mold cavity 40, which by means of a pouring channel 42 with the exterior of the Mold 28 is connected. Through this pouring channel 42 a reaction foam material becomes in the mold cavity 40 cast in, which is expediently a PU material is.
  • This introduction of the PU material in the Mold cavity 40 is shown in FIG. 2 by arrow 44 clarified.
  • the PU material poured into the mold cavity fills the mold cavity 40 in the mold 28 completely so that the mold cavity 40 Corresponding contoured core part 46 results.
  • This Core part 46 is also illustrated in FIG. 3.
  • the core part 46 has an outer surface 48, of which the depressions 34 in the Molded parts 30 and 32 of the mold 28 corresponding Elevations 50 stand out.
  • the core part 46 has the Cross webs 36 of the mold 20 corresponding Through channels 52, FIG. 3 being a core part 46 clarified with such a through channel 52.
  • This Coating material which is preferably a PU hard coating material acts, fills the said gap 60 completely depressurized and solidifies in the gap 60.
  • the core part 46 thus forms only one in the inventive method Molding for realizing the box body 64. Die Upholstery properties of the article 66 are determined by the Upholstery cover 24 determined.
  • the PU hard coating material fills both the gap space 60 between the core part 46 and the cushion cover 24 as well completely at least one through channel 52, which extends through the core part 46. That the Through channel 52 filling PU hard coating material then forms a transverse or stiffening rib of the Box body 64. This means that not only mechanical strength and dimensional stability of the finished padded object 66 significantly improved, but also the mechanical connection between the core part 46, the cushion cover 24 and the box body 64.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Sewing Machines And Sewing (AREA)
  • Attitude Control For Articles On Conveyors (AREA)

Abstract

Disclosed is a method for producing a padded object (66). A padding sleeve (24) is cast and provided with an open cavity (54) on one side. A core piece (46) is inserted into the cavity (54) of the padding sleeve, whereby the surface (48) of the core piece is provided with elevations (50). Said elevations (50) enable the core piece (46) to be placed at a defined distance from the padding sleeve (24) when the core piece is inserted into the padding sleeve (24). A coating material is then poured into the gap (60) between the core piece (46) and the padding sleeve (24). Said coating material hardens inside the gap (60), joining the core piece (46) to the padding sleeve (24) in a firm manner.

Description

Zur Herstellung gepolsterter Gegenstände sind verschiedene Verfahren bekannt. Beispielsweise wird zur Realisierung eines gepolsterten Gegenstandes in der DE 43 00 375 A1 ein Verfahren beschrieben, bei dem in einem ersten Verfahrensschritt in eine Tiefzieh-Form ein Bezug eng und faltenfrei eingebracht wird. Anschließend wird in einem zweiten Verfahrensschritt der Bezug mit einem Reaktionsgemisch hinterschäumt. Dieses Reaktionsgemisch bildet nach Ablauf der Reaktion einen Polsterkern. In einem dritten Verfahrensschritt kann dann an der vom Bezug abgewandten Rückseite des Polsterkerns ein formstabiler Körper vorgesehen werden. Das kann durch Gießen eines Hartcoating-Materials geschehen. Zur Durchführung dieses Verfahrens kann ein Formwerkzeug mit zwei unterschiedlichen Deckeln zur Anwendung gelangen.There are several ways to make padded items Process known. For example, for realization a padded object in DE 43 00 375 A1 Process described in which in a first Process step into a deep-drawing mold closely and closely is introduced without wrinkles. Then in one second step of the reference with a Foamed reaction mixture. This reaction mixture forms a cushion core after the reaction. In one third process step can then on the of the reference averted back of the cushion core a dimensionally stable Bodies are provided. That can be done by pouring one Hard coating materials happen. To do this A molding tool with two different methods can be used Lids are used.

Zur Realisierung eines gepolsterten Gegenstandes ist es auch bekannt, ein Formwerkzeug mit drei verschiedenen Deckeln anzuwenden. Bei diesem Verfahren gemäß der älteren Patentanmeldung 198 10 711 der Anmelderin wird in einem ersten Verfahrensschritt eine Haut gegossen, welche den oben erwähnten Bezug des gepolsterten Gegenstandes ersetzt. Alle diese bekannten Verfahren sind jedoch relativ aufwendig.It is for realizing a padded object also known a mold with three different ones Apply lids. In this procedure according to the older one Patent application 198 10 711 by the applicant is in one first step a skin is poured, which the above-mentioned upholstered article cover replaced. However, all of these known methods are relative consuming.

Ein weiteres Verfahren zur Herstellung einer Polsterhülle, die ein Kernteil umschließt wird im Dokument EP-A-0 210 587 offenbart.Another method of making a cushion cover that is a core part enclosed is disclosed in document EP-A-0 210 587.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Herstellung eines gepolsterten Gegenstandes zu schaffen, das vergleichsweise einfach realisierbar ist, d.h. mit welchem gepolsterte Gegenstände einfach und preisgünstig herstellbar sind.The invention has for its object a method for Creating a padded item, which is comparatively easy to implement, i.e. With which padded items simple and inexpensive are producible.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1, d.h. dadurch gelöst, daß eine Polsterhülle mit einem einseitig offenen Hohlraum gegossen wird, daß in den Hohlraum der Polsterhülle ein Kernteil eingebracht wird, das an seiner Oberfläche mit Erhebungen ausgebildet ist, wobei die Erhebungen des Kernteils im in die Polsterhülle eingebrachten Zustand an der Innen-Oberfläche des Hohlraums der Polsterhülle anliegen, so daß das Kernteil von der Innen-Oberfläche der Polsterhülle allseitig definiert beabstandet wird, und daß in den durch die Innen-Oberfläche des Hohlraums der Polsterhülle und durch die Oberfläche des Kernteils bestimmten Spaltraum zwischen der Polsterhülle und dem Kernteil ein Coating-Material eingegossen wird, das den Spaltraum ausfüllt und das Kernteil mit der Polsterhülle fest verbindend sich im Spaltraum verfestigt.This object is achieved by the features of Claim 1, i.e. solved in that a cushion cover with a cavity that is open on one side is poured into the A core part is introduced into the cavity of the cushion cover, which is formed with elevations on its surface, the elevations of the core part in the cushion cover inserted state on the inner surface of the cavity of the cushion cover so that the core part of the Inner surface of the cushion cover defined on all sides is spaced, and that in the through the inner surface the cavity of the cushion cover and through the surface of the Core part determined gap between the cushion cover and a coating material is poured into the core part, the fills the gap and the core part with the Upholstery cover firmly solidified in the gap space.

Erfindungsgemäß wird die Polsterhülle in einem Formwerkzeug bspw. durch Gießen hergestellt. Das Kernteil wird davon unabhängig, d.h. bspw. in einem eigenen Formwerkzeug hergestellt. Nach dem Einbringen des Kernteils in den Hohlraum der Polsterhülle wird der Spaltraum zwischen dem Kernteil und der Polsterhülle mit dem Coating-Material ausgefüllt. Das geschieht durch Eingießen des Coating-Materials in den Spaltraum zwischen dem Kernteil und der Polsterhülle. Nach dem Verfestigen des Coating-Materials im besagten Spaltraum ergibt sich durch das verfestigte Coating-Material die gewünschte Formstabilität des gepolsterten Gegenstands. Das Kernteil selbst braucht also nicht besonders formstabil zu sein. According to the invention, the cushion cover is in a mold For example, manufactured by casting. The core part of it independent, i.e. For example, in a separate mold manufactured. After inserting the core part in the The cavity of the cushion cover becomes the gap between the Core part and the cushion cover with the coating material filled. This is done by pouring the coating material in the gap between the core part and the Pad cover. After the coating material has solidified in the said gap space results from the solidified Coating material the desired dimensional stability of the padded object. So the core part itself needs not being particularly dimensionally stable.

Die Polsterhülle wird zweckmäßigerweise aus einem Reaktionsschaum-Material gegossen. Bevorzugt ist es, die Polsterhülle aus einem Polyurethan(PU)-Integralschaum-Material zu gießen. Die Verwendung eines PU-Integralschaum-Materials ergibt den Vorteil, daß die Polsterhülle eine abriebfeste Außenhaut aufweist. Das ist bei diversen Anwendungen des erfindungsgemäß hergestellten gepolsterten Gegenstandes, wie bspw. bei Armlehnen, Sitz- und Rückenlehnenpolstern, Kopfstützen oder anderen Formteilen von Fahrzeugen oder dergl. vorteilhaft.The cushion cover is expediently made from one Reaction foam material poured. It is preferred that Upholstery cover made of a polyurethane (PU) integral foam material to pour. The use of a PU integral foam material gives the advantage that the cushion cover a has abrasion-resistant outer skin. That is with various Applications of the padded according to the invention Object, such as with armrests, seat and Backrest cushions, headrests or other molded parts of vehicles or the like. advantageous.

Die Polsterhülle kann bspw. auch aus einem Weichschaum-Material gegossen werden.The cushion cover can also be made of a soft foam material, for example be poured.

Das Kernteil kann aus jedem beliebigen Material wie bspw. Holz, Metall, Kunststoff, Kunststoff-Recyclat usw. bestehen, zweckmäßig ist es, das Kernteil aus einem Reaktionsschaum-Material zu gießen. Bevorzugt ist es, das Kernteil aus einem PU-Material zu gießen. Das ist unter dem Gesichtspunkt der Sortenreinheit des erfindungsgemäß hergestellten gepolsterten Gegenstandes und somit unter Recycling-Gesichtspunkten zweckmäßig. Bei dem PU-Material kann es sich bspw. um ein PU-Coating-Material handeln. Hierbei kann es sich um ein Weichcoating-Material oder vorzugsweise um ein Hartcoating-Material handeln.The core part can be made of any material such as. Wood, metal, plastic, recycled plastic, etc. consist, it is appropriate to the core part of one Pour reaction foam material. It is preferred that Cast core part from a PU material. That is under the Aspect of the varietal purity of the invention manufactured padded object and thus under Appropriate for recycling. With the PU material it can be a PU coating material, for example. This can be a soft coating material or preferably a hard coating material.

Um die Verbindung zwischen dem Kernteil und der Polsterhülle mittels des den Spaltraum zwischen der Polsterhülle und dem Kernteil ausfüllenden verfestigten Coating-Materials weiter zu verbessern und gleichzeitig die Formstabilität des gepolsterten Gegenstandes durch das besagte erstarrte Coating-Material zu erhöhen, kann es zweckmäßig sein, wenn das Kernteil mit Durchgangskanälen ausgebildet wird. Diese Durchgangskanäle können sich in Längs- und Querrichtung bzw. in beliebigen Richtungen des Kernteils erstrecken. Auf diese Weise ist ein gepolsterter Gegenstand mit einem Kastenkorpus aus dem verfestigten Coating-Material des Spaltraumes zwischen der Polsterhülle und dem Kernteil realisierbar, wobei der relativ dünnwandige und somit leichtgewichtige Kastenkorpus entsprechend den zuletzt erwähnten Durchgangskanälen mit Versteifungsrippen gestaltet sein kann. Diese leichtgewichtige und dennoch formstabile Ausbildung ist ein weiterer Vorteil des erfindungsgemäß hergestellten Gegenstands.To the connection between the core part and the Cushion cover by means of the gap between the Padded cover and the core part filling solidified Coating materials continue to improve and at the same time the Dimensional stability of the padded object by the said solidified coating material can increase it be useful if the core part with through channels is trained. These through channels can be in Longitudinal and transverse direction or in any direction of the Extend core part. This is a padded one Object with a box body from the solidified Coating material of the gap between the cushion cover and the core part realizable, the relative thin-walled and therefore lightweight box body corresponding to the last-mentioned through channels Stiffening ribs can be designed. This lightweight, yet dimensionally stable training is a Another advantage of the manufactured according to the invention Object.

Bevorzugt ist es, in den Spaltraum zwischen der Polsterhülle und dem Kernteil ein Hartcoating-Material einzugießen. Bei diesem Hartcoating-Material handelt es sich vorzugsweise um ein PU-Hartcoating-Material, so daß insgesamt ein sortenreiner gepolsteter Gegenstand einfach und preisgünstig realisierbar ist. Das erfindungsgemäße Verfahren ist problemlos teilautomatisierbar, wenn es für relativ kleine Stückzahlen zur Anwendung gelangt. Bei größeren Stückzahlen ist das erfindungsgemäße Verfahren selbstverständlich auch vollautomatisch durchführbar. Ein weiterer Vorteil des erfindungsgemäßen Verfahrens besteht darin, daß sowohl die Polsterhülle als auch das Kernteil den jeweiligen Anforderungen entsprechend in einfacher Weise frei gestaltbar sind, was bedeutet, daß auch der Spaltraum zwischen der Polsterhülle und dem Kernteil entsprechend frei gestalt- und dimensionierbar ist, um die jeweils gewünschte hohe mechanische Festigkeit des fertigen gepolsterten Gegenstandes zu gewährleisten. It is preferred to enter the gap between the Upholstery cover and the core part a hard coating material pour. This hard coating material is is preferably a PU hard coating material, so that all in all, a pure, single padded object and is inexpensive to implement. The invention The process can easily be partially automated if it is for relatively small quantities are used. at Larger quantities is the method according to the invention naturally also fully automatic. On there is a further advantage of the method according to the invention in that both the cushion cover and the core part according to the respective requirements in simple Are freely configurable, which means that the Gap between the cushion cover and the core part can be freely designed and dimensioned accordingly each desired high mechanical strength of the finished ensure padded object.

Weitere Einzelheiten, Merkmale und Vorteile ergeben sich aus der nachfolgenden Beschreibung von in der Zeichnung schematisch dargestellten Verfahrensschritten zur Durchführung des erfindungsgemäßen Verfahrens zur Herstellung eines gepolsterten Gegenstandes, bei dem es sich bspw. um eine Fahrzeug-Armlehne handelt, wobei es sich selbstverständlich versteht, daß das erfindungsgemäße Verfahren nicht auf die Realisierung einer solchen Fahrzeug-Armlehne beschränkt ist. Es zeigen:

Figur 1
in einer Schnitt-Darstellung einen ersten Arbeitsschritt des Verfahrens zur Herstellung eines gepolsterten Gegenstandes,
Figur 2
in einer Schnittdarstellung einen nachfolgenden zweiten Arbeitsschritt des erfindungsgemäßen Verfahrens,
Figur 3
einen nachfolgenden dritten Arbeitsschritt des Verfahrens zur Herstellung eines gepolsterten Gegenstandes und
Figur 4
in einer den Figuren 1 bis 3 ähnlichen Schnittdarstellung einen nachfolgenden vierten Arbeitsschritt des Verfahrens zur Herstellung eines gepolsterten Gegenstandes.
Further details, features and advantages emerge from the following description of the method steps schematically shown in the drawing for carrying out the method according to the invention for producing a cushioned object, which is, for example, a vehicle armrest, it being understood that the method according to the invention is not limited to the realization of such a vehicle armrest. Show it:
Figure 1
a sectional view of a first step in the process for producing a cushioned object,
Figure 2
in a sectional view a subsequent second step of the inventive method,
Figure 3
a subsequent third step of the method for producing a padded article and
Figure 4
in a sectional illustration similar to FIGS. 1 to 3, a subsequent fourth working step of the method for producing a cushioned object.

Figur 1 zeigt geschnitten ein Formwerkzeug 10, das zwei Formteile 12 und 14 und ein Zentralteil 16 aufweist. Im zusammengebauten Zustand wird durch die beiden Formteile 12 und 14 und das Zentralteil 16 ein Formhohlraum 18 für eine Polsterhülle festgelegt. Der Formhohlraum 18 ist mit der Außenseite des Formwerkzeuges 10 durch einen Gießkanal 20 strömungstechnisch verbunden. Im zusammengebauten Zustand des Formwerkzeuges 10 wird durch den Gießkanal 20 in den Formhohlraum 18 ein Reaktionsschaum-Material eingebracht, das vorzugsweise von einem PU-Integralschaum-Material gebildet ist. Das ist in Figur 1 durch den Pfeil 22 angedeutet. Das PU-Integralschaum-Material wird in den Formhohlraum 18 derartig eingegossen, daß es den besagten Formhohlraum 18 vollständig ausfüllt. Nach Ablauf der Reaktion des PU-Integralschaum-Materiales ergibt sich eine dem Formhohlraum 18 entsprechende Polsterhülle 24.Figure 1 shows a section of a mold 10, the two Has molded parts 12 and 14 and a central part 16. in the assembled state is by the two molded parts 12th and 14 and the central part 16 a mold cavity 18 for one Upholstery cover set. The mold cavity 18 is with the Outside of the molding tool 10 through a pouring channel 20 fluidically connected. When assembled of the mold 10 is through the pouring channel 20 in the Cavity 18 introduced a reaction foam material, preferably from a PU integral foam material is formed. That is in Figure 1 by arrow 22 indicated. The PU integral foam material is used in the Mold cavity 18 poured in such a way that it said Mold cavity 18 completely fills. After the expiry of the There is a reaction of the PU integral foam material cushion shell 24 corresponding to the mold cavity 18.

Nach der Ausbildung der Polsterhülle 24 wird das Zentralteil 16 aus dem Formwerkzeug 10 entfernt. Das ist in Figur 1 durch den Pfeil 26 angedeutet. Die Polsterhülle 24 verbleibt im geschlossenen Formwerkzeug 10 zwischen den Formteilen 12 und 14.After the formation of the cushion cover 24, the Central part 16 removed from the mold 10. Is in Figure 1 indicated by the arrow 26. The cushion cover 24 remains in the closed mold 10 between the Moldings 12 and 14.

Figur 2 zeigt in einer Schnitt-Darstellung ein Formwerkzeug 28 für ein Kernteil. Das Formwerkzeug 28 weist zwei Formteile 30 und 32 auf. Die beiden Formteile 30 und 32 sind mit Vertiefungen 34 und mit Querstegen 36 ausgebildet. Durch die beiden Formteile 30 und 32 des Formwerkzeuges 28 erstreckt sich bei dem dargestellten Ausführungsbeispiel eine Lagerachse 38 quer hindurch.Figure 2 shows a sectional view of a mold 28 for a core part. The molding tool 28 has two Moldings 30 and 32. The two molded parts 30 and 32 are formed with recesses 34 and with transverse webs 36. Through the two molded parts 30 and 32 of the molding tool 28 extends in the illustrated embodiment a bearing axis 38 across.

Im geschlossenen Zustand des Formwerkzeuges 28 wird durch seine Formteile 30 und 32 ein Formhohlraum 40 festgelegt, der mittels eines Gießkanales 42 mit dem Äußeren des Formwerkzeuges 28 verbunden ist. Durch diesen Gießkanal 42 wird in den Formhohlraum 40 ein Reaktionsschaum-Material eingegossen, bei dem es sich zweckmäßigerweise um ein PU-Material handelt. Dieses Einbringen des PU-Materials in den Formhohlraum 40 ist in Figur 2 durch den Pfeil 44 verdeutlicht. Das in den Formhohlraum eingegossene PU-Material füllt den Formhohlraum 40 im Formwerkzeug 28 vollständig aus, so daß sich ein dem Formhohlraum 40 konturmäßig entsprechendes Kernteil 46 ergibt. Dieses Kernteil 46 ist auch in Figur 3 verdeutlicht. Aus Figur 3 ist ersichtlich, daß das Kernteil 46 eine Außen-Oberfläche 48 aufweist, von welcher den Vertiefungen 34 in den Formteilen 30 und 32 des Formwerkzeuges 28 entsprechende Erhebungen 50 wegstehen. Außerdem weist das Kernteil 46 den Querstegen 36 des Formwerkzeuges 20 entsprechende Durchgangskanäle 52 auf, wobei die Figur 3 ein Kernteil 46 mit einem solchen Durchgangskanal 52 verdeutlicht.In the closed state of the mold 28 is by its mold parts 30 and 32 define a mold cavity 40, which by means of a pouring channel 42 with the exterior of the Mold 28 is connected. Through this pouring channel 42 a reaction foam material becomes in the mold cavity 40 cast in, which is expediently a PU material is. This introduction of the PU material in the Mold cavity 40 is shown in FIG. 2 by arrow 44 clarified. The PU material poured into the mold cavity fills the mold cavity 40 in the mold 28 completely so that the mold cavity 40 Corresponding contoured core part 46 results. This Core part 46 is also illustrated in FIG. 3. From Figure 3 it can be seen that the core part 46 has an outer surface 48, of which the depressions 34 in the Molded parts 30 and 32 of the mold 28 corresponding Elevations 50 stand out. In addition, the core part 46 has the Cross webs 36 of the mold 20 corresponding Through channels 52, FIG. 3 being a core part 46 clarified with such a through channel 52.

Nach der Entnahme des Kernteiles 46 aus dem Formwerkzeug 28, das zu diesem Zwecke geöffnet wird, wird das Kernteil 46 in den dem Zentralteil 16 des Formwerkzeuges für die Polsterhülle 24 entsprechenden Hohlraum 54 der im Formwerkzeug 10 verbleibenden Polsterhülle 54 angeordnet, was in Figur 3 durch den Pfeil 56 verdeutlicht ist. Dabei wird das Kernteil 46 mittels der von ihm wegstehenden Erhebungen 50 von der Innen-Oberfläche 58 der Polsterhülle 24 (siehe Figur 3) allseitig definiert beabstandet. In den durch die Innen-Oberfläche 58 des Hohlraumes 54 der Polsterhülle 24 und durch die Oberfläche 48 des Kernteiles 46 bestimmten Spaltraum 60 zwischen der Polsterhülle 24 und dem Kernteil 46 wird dann ein Coating-Material eingegossen, was in Figur 4 durch den Pfeil 62 angedeutet ist. Dieses Coating-Material, bei dem es sich vorzugsweise um ein PU-Hartcoating-Material handelt, füllt den besagten Spaltraum 60 drucklos vollständig aus und erstarrt im Spaltraum 60. Auf diese Weise ergibt sich ein formstabiler, dünnwandiger Kastenkörper 64, welcher die Formstabilität des fertigen gepolsterten Gegenstandes 66 bestimmt. Das Kernteil 46 bildet also bei dem erfindungsgemäßen Verfahren nur ein Formteil zur Realisierung des Kastenkörpers 64. Die Polstereigenschaften des Gegenstandes 66 werden durch die Polsterhülle 24 bestimmt.After the core part 46 has been removed from the mold 28, which is opened for this purpose, becomes the core part 46 in the central part 16 of the mold for the Cushion cover 24 corresponding cavity 54 in the Forming tool 10 remaining cushion cover 54 arranged, which is illustrated in Figure 3 by arrow 56. there the core part 46 by means of the protruding from it Elevations 50 from the inner surface 58 of the cushion cover 24 (see FIG. 3) spaced apart on all sides. In the through the inner surface 58 of the cavity 54 of the Upholstery cover 24 and through the surface 48 of the core part 46 determined gap 60 between the cushion cover 24 and a coating material is then poured into the core part 46, which is indicated in Figure 4 by arrow 62. This Coating material, which is preferably a PU hard coating material acts, fills the said gap 60 completely depressurized and solidifies in the gap 60. This results in a dimensionally stable, thin-walled Box body 64, which the dimensional stability of the finished padded object 66 determined. The core part 46 thus forms only one in the inventive method Molding for realizing the box body 64. Die Upholstery properties of the article 66 are determined by the Upholstery cover 24 determined.

Das PU-Hartcoating-Material füllt sowohl den Spaltraum 60 zwischen dem Kernteil 46 und der Polsterhülle 24 als auch den wenigstens einen Durchgangskanal 52 vollständig aus, der sich durch das Kernteil 46 hindurch erstreckt. Das den Durchgangskanal 52 ausfüllende PU-Hartcoating-Material bildet dann eine Quer- bzw. Versteifungsrippe des Kastenkörpers 64. Hierdurch wird also nicht nur die mechanische Festigkeit und Formstabilität des fertigen gepolsterten Gegenstandes 66 wesentlich verbessert, sondern auch die mechanische Verbindung zwischen dem Kernteil 46, der Polsterhülle 24 und dem Kastenkörper 64.The PU hard coating material fills both the gap space 60 between the core part 46 and the cushion cover 24 as well completely at least one through channel 52, which extends through the core part 46. That the Through channel 52 filling PU hard coating material then forms a transverse or stiffening rib of the Box body 64. This means that not only mechanical strength and dimensional stability of the finished padded object 66 significantly improved, but also the mechanical connection between the core part 46, the cushion cover 24 and the box body 64.

Claims (8)

  1. Method for producing a padded object, in which a padding surround (24) is cast with a cavity (54) which is open on one side, a core part (46), which is formed with elevations (50) on its surface (48), is introduced into the cavity (54) of the padding surround (24), with the elevations (50) of the core part (46) bearing against the inner surface (58) of the cavity (54) of the padding surround (24), so that the core part (46) is kept at a defined distance from the inner surface (58) of the padding surround (24) on all sides, and a coating material is poured into the gap (60) between the padding surround (24) and the core part (46), determined by the inner surface (58) of the cavity (54) of the padding surround (24) and by the surface (48) of the core part (46), fills the gap (60) and is made to set in the gap (60) in such a way that it securely bonds the core part (46) to the padding surround (24).
  2. Method according to Claim 1, characterized in that the padding surround (24) is cast from a reaction foam material.
  3. Method according to Claim 2, characterized in that the padding surround (24) is cast from a PU integral foam material.
  4. Method according to Claim 1, characterized in that the core part (46) is cast from a reaction foam material.
  5. Method according to Claim 4, characterized in that the core part (46) is cast from a PU material.
  6. Method according to one of Claims 1 to 5, characterized in that the core part (46) is formed with passages (52).
  7. Method according to Claim 1, characterized in that a hard coating material is poured into the gap (60) between the padding surround (24) and the core part (46).
  8. Method according to Claim 7, characterized in that a PU hard coating material is poured into the gap (60) between the padding surround (24) and the core part (46).
EP99947224A 1998-07-23 1999-07-14 Method for producing a padded object Expired - Lifetime EP1098744B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19833098 1998-07-23
DE19833098A DE19833098C1 (en) 1998-07-23 1998-07-23 Making cushioned object comprising core and foamed casing
PCT/DE1999/002207 WO2000005050A1 (en) 1998-07-23 1999-07-14 Method for producing a padded object

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EP1098744A1 EP1098744A1 (en) 2001-05-16
EP1098744B1 true EP1098744B1 (en) 2002-06-12

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EP99947224A Expired - Lifetime EP1098744B1 (en) 1998-07-23 1999-07-14 Method for producing a padded object

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EP (1) EP1098744B1 (en)
DE (2) DE19833098C1 (en)
TR (1) TR200100220T2 (en)
WO (1) WO2000005050A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102010025137B4 (en) * 2010-06-25 2014-03-20 Edag Gmbh & Co. Kgaa Process for the production of PU molded parts and PU molded part produced thereafter
DE102013006300A1 (en) * 2013-04-12 2014-10-16 Parat Beteiligungs Gmbh Structural component and method for producing a structural component
WO2020126661A1 (en) 2018-12-21 2020-06-25 Adler Pelzer Holding Gmbh Device for noise insulation of a machine

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Publication number Priority date Publication date Assignee Title
DE3527540A1 (en) * 1985-08-01 1987-02-12 Grammer Sitzsysteme Gmbh METHOD FOR PRODUCING A UPHOLSTERY ELEMENT AND DEVICE FOR CARRYING OUT THIS METHOD
CA2027471C (en) * 1990-03-28 1994-02-15 Ian L. Hughes Process for manufacturing a padded element
JP3219407B2 (en) * 1990-11-26 2001-10-15 エクセル株式会社 Multilayer plastic tube and method of manufacturing the same
DE4300375C2 (en) * 1993-01-09 2001-02-15 Grammer Ag Method and device for producing a cushion part for a seat
CA2162778A1 (en) * 1995-04-19 1996-10-20 James R. Pritchard Panel with integral energy absorber and air duct
US5709828A (en) * 1995-10-26 1998-01-20 Davidson Textron Inc. Method of fabricating a foamed interior trim product

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DE19833098C1 (en) 2000-01-20
WO2000005050A1 (en) 2000-02-03
EP1098744A1 (en) 2001-05-16
TR200100220T2 (en) 2001-05-21
DE59901748D1 (en) 2002-07-18

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